admin search for generic foreign key django

Question

I am trying to put admin search on model in generic foreign key is present.

admin.py

class privacySettingsAdmin(admin.ModelAdmin):
    fieldsets = (
        (None, {
            'fields': (
                'field_name',
                'level',

            )
        }),
        (('page/article'), {
            'classes': ('grp-collapse grp-open',),
            'fields': ('content_type', 'object_id', )
        }),
    )
    autocomplete_lookup_fields = {
        'generic': [['content_type', 'object_id']],
    }
    search_fields = ('object_id',)

i am able to search using object_id . But i want search using the feilds of that object_id object.

ex. User has a foreign key to model. then i want to search privacy setting of that user using username , first_name , email and last_name .

Thanks in advance.

Answer 1

Try below codes:

In models.py:

class PrivacySettings(models.Model):
    ...
    def object_username(self):
        return self.object.username
    object_username = property(object_username)

    def object_first_name(self):
        return self.object.first_name
    object_first_name = property(object_first_name)

    def object_last_name(self):
        return self.object.last_name
    object_last_name = property(object_last_name)

    def object_email(self):
        return self.object.email
    object_email = property(object_email)

In admin.py:

class PrivacySettingsAdmin(admin.ModelAdmin):
    model = PrivacySettings
    fieldsets = (
        (None, {
            'fields': (
                'field_name',
                'level',

            )
        }),
        (('page/article'), {
            'classes': ('grp-collapse grp-open',),
            'fields': ('content_type', 'object_id', )
        }),
    )
    autocomplete_lookup_fields = {
        'generic': [['content_type', 'object_id']],
    }
    search_fields = ('object_id', 'object_username', 'object_first_name',
                     'object_last_name', 'object_email')